| 2020-12-18 | New taxonomic reference entry | Silometopus elton Tanasevitch & Grushko, 2020 | Russia (Europe) | | Tanasevitch & Grushko, 2020 |
| 2020-12-18 | New species inserted | Silometopus elton Tanasevitch & Grushko, 2020 | Russia (Europe) | | Tanasevitch & Grushko, 2020 |
| 2020-12-18 | Reference included | | | Marusik et al., 2020 |
| 2020-12-18 | Species transferred to new genus | Alenatea acusiseta (Zhu & Song, 1994) | China, Korea, Japan | Species transferred from Araneus to Alenatea | Marusik et al., 2020 |
| 2020-12-18 | Species distribution update | Alenatea acusiseta (Zhu & Song, 1994) | China, Korea, Japan | (Old value) | Marusik et al., 2020 |
| 2020-12-18 | New taxonomic reference entry | Alenatea touxie Song & Zhu, 1999 | China | | Marusik et al., 2020 |
| 2020-12-18 | Taxonomic reference added from other taxon | Alenatea wangi Zhu & Song, 1999 | China, Russia (Far East) | (Old value) | |
| 2020-12-18 | Taxonomic reference assigned to new taxon | Alenatea touxie Song & Zhu, 1999 | China | Taxonomic reference entry assigned to Alenatea wangi Zhu & Song, 1999 | |
| 2020-12-18 | New taxonomic reference entry | Alenatea wangi Zhu & Song, 1999 | China, Russia (Far East) | | Marusik et al., 2020 |
| 2020-12-18 | First description of male | Alenatea wangi Zhu & Song, 1999 | China, Russia (Far East) | (Old value) | Marusik et al., 2020 |
| 2020-12-18 | New taxonomic reference entry | Alenatea fuscocolorata (Bösenberg & Strand, 1906) | Russia (Far East), China, Korea, Taiwan, Japan | | Marusik et al., 2020 |
| 2020-12-18 | Reference included | | | Galvis, Zapata-M & Malumbres-Olarte, 2020 |
| 2020-12-18 | New taxonomic reference entry | Anasaitis champetera Galvis, Zapata-M & Malumbres-Olarte, 2020 | Colombia | | Galvis, Zapata-M & Malumbres-Olarte, 2020 |
| 2020-12-18 | New species inserted | Anasaitis champetera Galvis, Zapata-M & Malumbres-Olarte, 2020 | Colombia | | Galvis, Zapata-M & Malumbres-Olarte, 2020 |
| 2020-12-18 | Reference included | | | Chamé-Vázquez, Cutler & Ibarra-Núñez, 2020 |
| 2020-12-18 | New taxonomic reference entry | Synemosyna ubicki Cutler, 1988 | Costa Rica | | Chamé-Vázquez, Cutler & Ibarra-Núñez, 2020 |
| 2020-12-18 | New taxonomic reference entry | Synemosyna maddisoni Cutler, 1985 | Mexico, Guatemala | | Chamé-Vázquez, Cutler & Ibarra-Núñez, 2020 |
| 2020-12-18 | Reference included | | | Maddison et al., 2020b |
| 2020-12-18 | New taxonomic reference entry | Piranthus mandai Maddison, 2020 | Singapore | | Maddison et al., 2020b |
| 2020-12-18 | New taxonomic reference entry | Piranthus kohi Maddison, 2020 | Malaysia (peninsula), Singapore | | Maddison et al., 2020b |
| 2020-12-18 | New taxonomic reference entry | Piranthus bakau Maddison, 2020 | Borneo (Malaysia, Brunei) | | Maddison et al., 2020b |
| 2020-12-18 | New taxonomic reference entry | Piranthus api Maddison, 2020 | Singapore | | Maddison et al., 2020b |
| 2020-12-18 | New species inserted | Piranthus mandai Maddison, 2020 | Singapore | | Maddison et al., 2020b |
| 2020-12-18 | New species inserted | Piranthus kohi Maddison, 2020 | Malaysia (peninsula), Singapore | | Maddison et al., 2020b |
| 2020-12-18 | New species inserted | Piranthus bakau Maddison, 2020 | Borneo (Malaysia, Brunei) | | Maddison et al., 2020b |
| 2020-12-18 | New species inserted | Piranthus api Maddison, 2020 | Singapore | | Maddison et al., 2020b |
| 2020-12-18 | New taxonomic reference entry | Nungia xiaolonghaensis (Cao & Li, 2016) | China | | Maddison et al., 2020b |
| 2020-12-18 | Species transferred to new genus | Nungia xiaolonghaensis (Cao & Li, 2016) | China | Species transferred from Cosmophasis to Nungia | Maddison et al., 2020b |
| 2020-12-18 | Genus updated | Cosmophasis Simon, 1901 | (Old value) | |
| 2020-12-18 | New taxonomic reference entry | Nungia papakula (Strand, 1911) | Indonesia (Aru Is.) | | Maddison et al., 2020b |
| 2020-12-18 | Species transferred to new genus | Nungia papakula (Strand, 1911) | Indonesia (Aru Is.) | Species transferred from Bavia to Nungia | Maddison et al., 2020b |
| 2020-12-18 | New taxonomic reference entry | Nungia modesta (Keyserling, 1883) | Australia (Queensland) | | Maddison et al., 2020b |
| 2020-12-18 | Species transferred to new genus | Nungia modesta (Keyserling, 1883) | Australia (Queensland) | Species transferred from Bavia to Nungia | Maddison et al., 2020b |
| 2020-12-18 | New taxonomic reference entry | Nungia hatamensis (Thorell, 1881) | Malaysia, New Guinea | | Maddison et al., 2020b |
| 2020-12-18 | Species transferred to new genus | Nungia hatamensis (Thorell, 1881) | Malaysia, New Guinea | Species transferred from Diplocanthopoda to Nungia | Maddison et al., 2020b |
| 2020-12-18 | New taxonomic reference entry | Maripanthus smedleyi (Reimoser, 1929) | Indonesia (Sumatra) | | Maddison et al., 2020b |
| 2020-12-18 | Species transferred to new genus | Maripanthus smedleyi (Reimoser, 1929) | Indonesia (Sumatra) | Species transferred from Bavia to Maripanthus | Maddison et al., 2020b |
| 2020-12-18 | New taxonomic reference entry | Maripanthus menghaiensis (Cao & Li, 2016) | China | | Maddison et al., 2020b |
| 2020-12-18 | Species transferred to new genus | Maripanthus menghaiensis (Cao & Li, 2016) | China | Species transferred from Nannenus to Maripanthus | Maddison et al., 2020b |
| 2020-12-18 | New taxonomic reference entry | Maripanthus reinholdae Maddison, 2020 | Borneo (Malaysia, Brunei) | | Maddison et al., 2020b |
| 2020-12-18 | New taxonomic reference entry | Maripanthus jubatus Maddison, 2020 | India | | Maddison et al., 2020b |
| 2020-12-18 | New species inserted | Maripanthus reinholdae Maddison, 2020 | Borneo (Malaysia, Brunei) | | Maddison et al., 2020b |
| 2020-12-18 | New species inserted | Maripanthus jubatus Maddison, 2020 | India | | Maddison et al., 2020b |
| 2020-12-18 | Reference included | | | Marusik & Azarkina, 2020 |
| 2020-12-18 | New taxonomic reference entry | Eresus kollari Rossi, 1846 | Europe, Turkey, Caucasus, Iran, Russia (Europe, to Far East?), Central Asia? | | Marusik & Azarkina, 2020 |
| 2020-12-18 | Species distribution update | Eresus kollari Rossi, 1846 | Europe, Turkey, Caucasus, Iran, Russia (Europe, to Far East?), Central Asia? | (Old value) | Marusik & Azarkina, 2020 |
| 2020-12-18 | Taxonomic reference update | Eresus tristis Kroneberg, 1875 | Kazakhstan | (Old value) | |
| 2020-12-18 | New taxonomic reference entry | Eresus tristis Kroneberg, 1875 | Kazakhstan | | Marusik & Azarkina, 2020 |
| 2020-12-18 | Taxonomic reference added from other taxon | Eresus tristis Kroneberg, 1875 | Kazakhstan | (Old value) | |
| 2020-12-18 | Taxonomic reference assigned to new taxon | Eresus kollari Rossi, 1846 | Europe, Turkey, Caucasus, Iran, Russia (Europe, to Far East?), Central Asia? | Taxonomic reference entry assigned to Eresus tristis Kroneberg, 1875 | |